Question about Goldstar DH504EL Dehumidifier

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Right after powering the dehumidifier on, the compressor starts running and just keeps running long after the coils are a solid block of ice. the compressor never shuts off.unit is 2 years old, basement is 70 degrees, 50% humidity.worked fine until a week ago, when compressor failed to turn off after coils iced up. have had 3 other units do the exact same thing. is it the sensor gone bad or the control board? and which sensor?

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Hi,
Here is a tip that will help you with basic trouble shooting..

http://www.fixya.com/support/r3877515-dehumidifier_problems_dehumidifier

heatman101

Posted on Apr 28, 2010

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1 Answer

Dehumidifier


when ice forms on an evaporator unit (coil) there is an indication of internal problems with the unit. IT may occur if there is insufficient air flow ( dirty or fan speed to low ) but when this happens the thermostat just orders more gas through the tx valve and so more ice is formed then the thermostat reads it as too cold and so cuts the gas flow back by controlling the operation of the tx valve
Water from a dehumidifier will depend on the atmosphere humidity so the lower the humidity reading the less water collected
However I suggest that you have a technician check it out as the compressor start/run capacitor may be faulty and that is why the compressor is not getting hot as it may not be running properly

Jul 23, 2015 | Dehumidifiers

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Keeps running compressor


Hey randall, thank you for your post!

I see that you're stating the compressor continues to run on your Frigidaire dehumidifier. What you could be hearing is the fan running. The fan will run when the compressor cuts off so that air can pass over the sensor coils to check the humidity. Hopefully this is helpful. -Matt

Sep 12, 2014 | Frigidaire Dehumidifiers

1 Answer

Dehumidifier freezes up


Good Afternoon Friend,

I understand your Frigidaire dehumidifier, model# FDF50S, is freezing up. I see that the compressor does not shut off, causing ice to build up on the coils, rather than water draining off. What can cause this is your dehumidifier has been turned on recently. This is normal due to refrigerant rushing through the coil. Frost will usually disappear within 60 minutes. Another cause is if the room temperature is too low or too high. Your appliance is designed to operate between 41 degrees F and 96 degrees F. I suggest resetting your appliance, by either unplugging it or shutting the power off at your home's circuit breaker, for 3-5 minutes. Restore power and start any cycle. I ask that you please follow up with a comment on the post, at your convenience, to advise if further troubleshooting is needed or if your appliances status has changed successfully. Hope this is helpful.

-Best Regards-
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Jun 29, 2014 | Frigidaire FDF50S Dehumidifier

1 Answer

The compressor and fan are running, however, there is no water coming out. RH is 70, temp is 66. This is after replacing a blower that had already seized up 2 years ago.


The dehumidifier should be removing water at 66F 70%rh.

First make sure that the compressor and fan are running. If they are, then turn the dehumidifier off and unplug the cord from the wall outlet. Next remove the front cover from the dehumidifier. Examine the evaporator coil (about 1/2 way up) beneath the plastic heat exchanger and above the stainless steel drain pan.

If the evaporator coil is cold and completely covered with frost & ice, the defrost thermostat may be defective. Replace the front cover. turn the humidity dial to "off". Plug the dehumidifier in to the wall outlet and set the fan switch to on - the fan will run (no compressor). Run this way for one hour to defrost the evaporator. Now adjust the humidity dial to your desired humidity and keep an eye on the dehumidifier. If it freezes up again and does not automatically defrost, the defrost thermostat should be replaced. Call the manufacturer at 1-800-533-7533 for parts and instructions.

If the evaporator coil is (mostly) warm and free of frost and ice, it is likely that some of the dehumidifier refrigerant has leaked out. this type of service should be done by a (refrigerant) certified technician. Call the manufacturer at 1-800-533-7533 for help with this service.

Aug 20, 2013 | Therma-Stor Santa Fe Dehumidifier

2 Answers

Does not collect water in bucket but runs all the time


Does it have a filter?
http://whirlpool.custhelp.com/app/answers/detail/a_id/953

also:

"
It may be that the humidity level or temperature in the room where your dehumidifier is located is too low.

When the outdoor temperature is below 50 F, the indoor air will be dry even when the air inside is warm, therefore when it's cold outside the dehumidifier may collect little or no water.

Air conditioners will also remove moisture from the room, even if it's hot and humid outside, resulting in little or no moisture collecting in the dehumidifier bucket.

Some dehumidifiers have a deicer which turns off the compressor but keeps the fan running. When the compressor is off, moisture is not removed from the air. The deicer turns off the compressor when the room temperature is cold.

Some dehumidifiers do not have a deicer. If the room temperature is low enough, ice may form on the evaporator coil. The ice prevents the dehumidifier from removing and collecting water. If ice forms on coils, unplug dehumidifier until ice melts and room temperature rises."

Jun 21, 2011 | Whirlpool AD25BBK Dehumidifier

2 Answers

Dehumdifier not collecting water.


It may be that the humidity level or temperature in the room where your dehumidifier is located is too low.

When the outdoor temperature is below 50 F, the indoor air will be dry even when the air inside is warm, therefore when it's cold outside the dehumidifier may collect little or no water.

Air conditioners will also remove moisture from the room, even if it's hot and humid outside, resulting in little or no moisture collecting in the dehumidifier bucket.

Some dehumidifiers have a deicer which turns off the compressor but keeps the fan running. When the compressor is off, moisture is not removed from the air. The deicer turns off the compressor when the room temperature is cold.

Some dehumidifiers do not have a deicer. If the room temperature is low enough, ice may form on the evaporator coil. The ice prevents the dehumidifier from removing and collecting water. If ice forms on coils, unplug dehumidifier until ice melts and room temperature rises.

The filter (on some models) may be dirty or clogged. If so, clean the filter. For instructions on cleaning the filter.

I hope this help to solve, if this answer solve it, remember to rate it. Good luck.

Oct 01, 2010 | Whirlpool AD50USL Dehumidifier

1 Answer

The coils freeze up after less than a half hour of running. It does not matter what humidity setting I use or if I select the 2 hour or 4 hour run cycle. B/c the coils are freezing up, the dehumidifier...


the coils freeze up for one of two reasons .. if air flow is blocked .. sometimes by dust buildup or fan bearings needing lube .. second if the fan is working properly then ice buildup can be caused by low refrigerant levels .. the proper charge produces a steady coolness across the entire evaporator (cold coil) .. as the level drops it tends to cool a small part of the evaporator way too cold .. that creates ice .. the ice blocks the air flow and soon the whole thing is blocked ...so check the fan first .. if its running properly and there is nothing blocking air flow then suspect low refrigerant.. that requires adding a saddle valve service port to the system to allow adding refrigerant .. often the problem is caused by the fan not working at all because of lack of lube in the bearings or a bad starting capacitor ..

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1 Answer

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unplug and take unit apart,blow out dust then carefully spray some cleaner-degreaser on and wash both condenser and evaporator coils,then let dry throughly, try not to soak the electrics too much a little will dry, let dry throughly then start it and leave it run a few minutes carefully touch top of compressor head,if quite warm and one line isn't hot and the other line isn't cold entering and exiting the compressor and evap coil starts to ice again you may be low on freon(refrigerant)

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2 Answers

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most likley low on freeon gets colder when it leaks out stat could be not working correctly

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i do believe you have it right. either you are low on freon 22 or the coil sensor and clip has failed so it can not shut off for cold conditions. the sensor can be tie wrapped back on if it is that, the plactic should not fail

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